南海海洋环境下机载电子设备的腐蚀及外场防护对策

Corrosion of Airborne Electronic Equipment and Field Protection Measures in Marine Environment of South China Sea

针对南海海洋大气环境下机载电子设备腐蚀故障率较大的问题,对现役飞机机载电子设备材料体系、外场故障现象及腐蚀机理进行了系统分析。结果表明,电子设备及其元器件受到微量的腐蚀就会对其功能、性能产生较大的影响,现役飞机电子设备的三防设计无法满足南海严酷的环境适应性要求,开展综合环境加速试验技术、微腐蚀机制及电信号传输与腐蚀间的对应关系等关键技术研究,是今后的重点研究方向。最后结合腐蚀原因和特点,给出了飞机外场具体腐蚀防护对策。

Aiming at the problem that the corrosion failure rate of airborne electronic equipment in the marine atmospheric environment of the South China Sea is obviously increased,this paper systematically analyzed the material system,external field failure phenomenon and corrosion mechanism of airborne electronic equipment in active aircraft.The results showed that the micro-corrosion of electronic equipment and its components had a great impact on its functional performance.The three-proof design of aircraft electronic equipment in service can not meet the harsh environmental adaptability requirements of the South China Sea.Key technologies such as integrated environmental accelerated test technology,micro-corrosion mechanism and the corresponding relationship between electrical signal transmission and corrosion are the key research in the future.Finally,combined with the causes and characteristics of corrosion,the specific corrosion protection countermeasures for airplane were given.